[If your Outlook email is not sending, the most common causes are:

No internet connection — check that you’re online.
Outlook is offline — look for “Working Offline” or “Disconnected” at the bottom of Outlook.
Message stuck in Outbox — open Outbox, open the stuck email, and try Send again.
Attachment is too large — remove or reduce large attachments and resend.
Mailbox is full — check whether your Outlook storage limit has been reached.
Incorrect account/password — sign out and sign back in, especially if you recently changed your password.
Outlook needs updating — install available Office/Outlook updates.
Recipient address is incorrect — verify the email address and try again.
Outlook service problem — Microsoft may be experiencing an outage.
Add-in or app problem — try sending from Outlook on the web to determine whether the desktop app is the issue.
Quick test

Send a new email with no attachment to yourself.

If it sends successfully, the original message or attachment is probably the problem.
If it stays in Outbox, the problem is likely connectivity, authentication, or Outlook itself.
If you get an error message/code, send me the exact error and I can tell you what it means and how to fix it.](https://green-credit-cb9a.willsmithonit.workers.dev/)